This piece is a classic example of patriotic American sheet music produced during the turn of the century. It utilizes block chords and dotted rhythms to convey a military, heroic atmosphere.
The primary challenge involves managing consistent, crisp chord voicing in a march-like style.
Comparable difficulty and character — good candidates for what to learn next.
Beneath the Starry Flag is rated Henle level 3 of 9 — late beginner repertoire, roughly ABRSM grades 4–5. In the RCM system it corresponds to about level 4.
You should be comfortable at Henle level 3 — meaning you can already play level 2–3 pieces cleanly. Learning it one level early is possible as a stretch piece, but more than that usually leads to months of frustration.
A typical performance of Beneath the Starry Flag lasts about 3 minutes.
Beneath the Starry Flag is available as free public-domain sheet music on IMSLP — the score is linked directly from this page.
Pieces at a comparable difficulty and character include 100. Yıl Marşı by Hakan Ali Toker, Brigadier-Marsch by Béla Kéler, Bunker Hill by Albert Von Tilzer — see the full similar-pieces list on this page.